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lower-1.xslt
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lower-1.xslt
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<?xml version="1.0" encoding="ISO-8859-1"?>
<!--
The original XML format is good for human use, but
difficult to interpret during code generation. This
lowers it to more repetitive & verbose, but easier
for the programs to interpret.
This is the first pass that folds all field tags into ld:field.
-->
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:ld="http://github.com/peterix/dfhack/lowered-data-definition">
<!--
Global templates:
- Copy attributes and simple tags
- Bail out on unexpected tags
-->
<xsl:template match="@*">
<xsl:copy-of select='.'/>
</xsl:template>
<xsl:template match="*">
<xsl:message terminate="yes">
Error: Unexpected tag: <xsl:value-of select='name(.)'/>
</xsl:message>
</xsl:template>
<xsl:template match="/data-definition">
<ld:data-definition>
<xsl:apply-templates select='@*|node()'/>
</ld:data-definition>
</xsl:template>
<xsl:template match="comment|code-helper|enum-attr|enum-item|item-attr">
<xsl:copy>
<xsl:apply-templates select='@*|node()'/>
</xsl:copy>
</xsl:template>
<xsl:template match="virtual-methods|cond-if|cond-else">
<xsl:param name='level' select='-1'/>
<xsl:copy>
<xsl:apply-templates select='@*|node()'>
<xsl:with-param name='level' select="$level"/>
</xsl:apply-templates>
</xsl:copy>
</xsl:template>
<!-- Type defs: convert to one common 'global-type' tag name. -->
<xsl:template match='enum-type|bitfield-type|class-type|struct-type'>
<ld:global-type>
<xsl:attribute name='ld:meta'><xsl:value-of select='name(.)'/></xsl:attribute>
<xsl:attribute name='ld:level'>0</xsl:attribute>
<xsl:apply-templates select='@*|node()'>
<xsl:with-param name='level' select="1"/>
</xsl:apply-templates>
</ld:global-type>
</xsl:template>
<!-- Code to properly annotate references to types by name -->
<xsl:key name="primitive-type-lookup" match="prim-type" use="@ld:subtype"/>
<xsl:variable name="primitive-types-top" select="document('')/*/ld:primitive-types"/>
<xsl:template match="ld:primitive-types">
<xsl:param name="name"/>
<xsl:param name="level"/>
<xsl:param name="rq_global"/>
<xsl:variable name='item' select="key('primitive-type-lookup', $name)"/>
<xsl:choose>
<xsl:when test="$item">
<xsl:if test='$rq_global'>
<xsl:message terminate="yes">
Error: Cannot refer to primitive types from <xsl:value-of select='$rq_global'/>
</xsl:message>
</xsl:if>
<xsl:apply-templates select="$item/@*"/>
<xsl:apply-templates select="$item/*">
<xsl:with-param name='level' select="$level+1"/>
</xsl:apply-templates>
</xsl:when>
<xsl:otherwise>
<xsl:attribute name='ld:meta'>global</xsl:attribute>
<xsl:attribute name='type-name'><xsl:value-of select='$name'/></xsl:attribute>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
<xsl:template name="lookup-type-ref">
<xsl:param name='name'/>
<xsl:param name='level' select='-1'/>
<xsl:param name='rq_global'/>
<xsl:attribute name='ld:level'><xsl:value-of select='$level'/></xsl:attribute>
<xsl:apply-templates select="$primitive-types-top">
<xsl:with-param name="name" select="$name"/>
<xsl:with-param name="level" select="$level"/>
<xsl:with-param name="rq_global" select="$rq_global"/>
</xsl:apply-templates>
</xsl:template>
<!--
Fields:
- Fold into one generic 'field' tag.
- Add a 'level' attribute to assist in searching by name.
-->
<!-- Primitive types: -->
<ld:primitive-types>
<prim-type ld:meta='number' ld:subtype='int8_t' ld:bits='8'/>
<prim-type ld:meta='number' ld:subtype='uint8_t' ld:unsigned='true' ld:bits='8'/>
<prim-type ld:meta='number' ld:subtype='int16_t' ld:bits='16'/>
<prim-type ld:meta='number' ld:subtype='uint16_t' ld:unsigned='true' ld:bits='16'/>
<prim-type ld:meta='number' ld:subtype='int32_t' ld:bits='32'/>
<prim-type ld:meta='number' ld:subtype='uint32_t' ld:unsigned='true' ld:bits='32'/>
<prim-type ld:meta='number' ld:subtype='int64_t' ld:bits='64'/>
<prim-type ld:meta='number' ld:subtype='uint64_t' ld:unsigned='true' ld:bits='64'/>
<prim-type ld:meta='number' ld:subtype='bool' ld:bits='8'/>
<prim-type ld:meta='number' ld:subtype='s-float' ld:bits='32'/>
<prim-type ld:meta='number' ld:subtype='d-float' ld:bits='64'/>
<prim-type ld:meta='number' ld:subtype='flag-bit' ld:bits='1'/>
<prim-type ld:meta='bytes' ld:subtype='padding'/>
<prim-type ld:meta='bytes' ld:subtype='static-string'/>
<prim-type ld:meta='pointer' ld:subtype='pointer'/>
<prim-type ld:meta='pointer' ld:subtype='ptr-string' ld:is-container='true'>
<static-string/>
</prim-type>
<prim-type ld:meta='primitive' ld:subtype='stl-string'/>
<prim-type ld:meta='primitive' ld:subtype='stl-fstream'/>
</ld:primitive-types>
<xsl:template match='int8_t|uint8_t|int16_t|uint16_t|int32_t|uint32_t|int64_t|uint64_t|bool|flag-bit|s-float|d-float|padding|static-string|ptr-string|stl-string|stl-fstream'>
<xsl:param name='level' select='-1'/>
<ld:field>
<xsl:apply-templates select='@*'/>
<xsl:call-template name='lookup-type-ref'>
<xsl:with-param name="name" select="name(.)"/>
<xsl:with-param name="level" select="$level"/>
</xsl:call-template>
<xsl:apply-templates select='node()'/>
</ld:field>
</xsl:template>
<!--
Compound, enum or bitfield:
- When a proxy: meta='global' subtype='$tag' type-name='blah'
- When an ad-hoc compound: meta='compound' subtype='$tag'
- Level not incremented unless it has a name.
-->
<xsl:template name='compound'>
<xsl:param name='level' select='-1'/>
<xsl:param name='level_shift' select='1'/>
<xsl:param name='rq_global'/>
<xsl:apply-templates select='@*'/>
<xsl:choose>
<xsl:when test='@type-name'>
<xsl:call-template name='lookup-type-ref'>
<xsl:with-param name='name' select="@type-name"/>
<xsl:with-param name="level" select="$level"/>
<xsl:with-param name='rq_global' select="$rq_global"/>
</xsl:call-template>
<xsl:apply-templates select='node()'/>
</xsl:when>
<xsl:otherwise>
<xsl:attribute name='ld:level'><xsl:value-of select='$level'/></xsl:attribute>
<xsl:attribute name='ld:meta'>compound</xsl:attribute>
<xsl:apply-templates select='node()'>
<xsl:with-param name='level' select="$level+$level_shift"/>
</xsl:apply-templates>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
<xsl:template match='compound'>
<xsl:param name='level' select='-1'/>
<ld:field>
<xsl:if test="not(@name|@type-name)">
<xsl:attribute name='ld:anon-compound'>true</xsl:attribute>
</xsl:if>
<xsl:call-template name='compound'>
<xsl:with-param name='level' select="$level"/>
<xsl:with-param name='level_shift' select="count(@name)"/>
</xsl:call-template>
</ld:field>
</xsl:template>
<xsl:template match='bitfield|enum'>
<xsl:param name='level' select='-1'/>
<ld:field>
<xsl:attribute name='ld:subtype'><xsl:value-of select='name(.)'/></xsl:attribute>
<xsl:call-template name='compound'>
<xsl:with-param name='level' select="$level"/>
<xsl:with-param name='rq_global' select="name(.)"/>
</xsl:call-template>
</ld:field>
</xsl:template>
<!-- Generic container helper: resolve type-name to a field, then process subtags. -->
<xsl:template name='container'>
<xsl:param name='level' select='-1'/>
<xsl:attribute name='ld:is-container'>true</xsl:attribute>
<xsl:choose>
<xsl:when test='@pointer-type'>
<ld:field ld:meta='pointer' ld:is-container='true'>
<xsl:attribute name='ld:level'><xsl:value-of select='$level'/></xsl:attribute>
<xsl:attribute name='type-name'><xsl:value-of select='@pointer-type'/></xsl:attribute>
<xsl:apply-templates select='@refers-to|@ref-target|@aux-value'/>
<ld:field>
<xsl:apply-templates select='@refers-to|@ref-target|@aux-value'/>
<xsl:call-template name='lookup-type-ref'>
<xsl:with-param name='name' select="@pointer-type"/>
<xsl:with-param name="level" select="$level+1"/>
</xsl:call-template>
</ld:field>
</ld:field>
<xsl:apply-templates select='node()'/>
</xsl:when>
<xsl:when test='@type-name'>
<ld:field>
<xsl:apply-templates select='@refers-to|@ref-target|@aux-value'/>
<xsl:call-template name='lookup-type-ref'>
<xsl:with-param name='name' select="@type-name"/>
<xsl:with-param name="level" select="$level"/>
</xsl:call-template>
</ld:field>
<xsl:apply-templates select='node()'/>
</xsl:when>
<xsl:otherwise>
<xsl:apply-templates select='node()'>
<xsl:with-param name='level' select="$level"/>
</xsl:apply-templates>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
<!-- Special containers: meta='$tag' -->
<xsl:template match='static-array|pointer'>
<xsl:param name='level' select='-1'/>
<ld:field>
<xsl:attribute name='ld:level'><xsl:value-of select='$level'/></xsl:attribute>
<xsl:attribute name='ld:meta'><xsl:value-of select='name(.)'/></xsl:attribute>
<xsl:apply-templates select='@*'/>
<xsl:call-template name='container'>
<xsl:with-param name='level' select="$level+1"/>
</xsl:call-template>
</ld:field>
</xsl:template>
<!-- Misc containers: meta='container' subtype='$tag' -->
<xsl:template match='stl-vector|stl-deque|stl-set|stl-bit-vector|df-flagarray|df-static-flagarray|df-array|df-linked-list'>
<xsl:param name='level' select='-1'/>
<ld:field ld:meta='container'>
<xsl:attribute name='ld:level'><xsl:value-of select='$level'/></xsl:attribute>
<xsl:attribute name='ld:subtype'><xsl:value-of select='name(.)'/></xsl:attribute>
<xsl:apply-templates select='@*'/>
<xsl:call-template name='container'>
<xsl:with-param name='level' select="$level+1"/>
</xsl:call-template>
</ld:field>
</xsl:template>
<!-- Virtual methods -->
<xsl:template match='vmethod'>
<xsl:param name='level' select='-1'/>
<xsl:copy>
<xsl:attribute name='ld:level'><xsl:value-of select='$level'/></xsl:attribute>
<xsl:apply-templates select='@*'/>
<xsl:if test='@ret-type'>
<xsl:copy-of select='text()[1]'/>
<ret-type>
<xsl:call-template name='lookup-type-ref'>
<xsl:with-param name='name' select="@ret-type"/>
<xsl:with-param name="level" select="$level+1"/>
</xsl:call-template>
</ret-type>
</xsl:if>
<xsl:apply-templates select='node()'>
<xsl:with-param name='level' select="$level+1"/>
</xsl:apply-templates>
</xsl:copy>
</xsl:template>
<xsl:template match='ret-type'>
<xsl:param name='level' select='-1'/>
<xsl:copy>
<xsl:call-template name='compound'>
<xsl:with-param name='level' select="$level"/>
</xsl:call-template>
</xsl:copy>
</xsl:template>
<!-- Global objects: treat as container fields -->
<xsl:template match='global-object'>
<ld:global-object>
<xsl:attribute name='ld:level'>0</xsl:attribute>
<xsl:apply-templates select='@*'/>
<xsl:call-template name='container'>
<xsl:with-param name='level' select="1"/>
</xsl:call-template>
</ld:global-object>
</xsl:template>
</xsl:stylesheet>
<!--
Local Variables:
indent-tabs-mode: nil
nxml-child-indent: 4
End:
-->